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high severity July 18, 2023 · 3 min read Unverified claim — what this is

cotrelec.com Listed by lockbit3 Ransomware Group

If you are a customer of cotrelec.com, here’s what is being claimed, and what it would mean for you.

The COTRELEC group, specialized in PUBLIC WORKS, as well as industrial and tertiary ELECTRIC SUPPLY, is based primarily in the New-Aquitaine region.We attach great importance to providing you with local service.Since 1988, our experience in study...

— from LockBit’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
cotrelec.com Listed by lockbit3 Ransomware Group

On July 18, 2023, the French electrical infrastructure company Cotrelec appeared on the LockBit 3.0 ransomware leak site. The listing states that internal files were exfiltrated during a ransomware attack on the firm, which specializes in public works and industrial and tertiary electric supply across the New-Aquitaine region. Anyone whose personal or business data was stored in Cotrelec’s systems may now be exposed.

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Reported Details from the Listing

The LockBit 3.0 leak page, still accessible via its onion address as of the initial disclosure, claims that Cotrelec suffered a ransomware intrusion and that attackers successfully removed internal files. The posting does not quantify the number of records affected, list specific data types beyond “internal files,” or name individual victims. It follows the group’s standard format: an announcement of compromise, a partial file tree or sample data preview, and a countdown timer for negotiation. No formal breach notification from Cotrelec itself has surfaced in public regulatory filings, so the exact scope remains unconfirmed by the company.

Why This Matters for You and Your Family

When a regional contractor handling public-works contracts and electrical infrastructure is breached, the ripple effects reach ordinary households. Project bids, supplier contracts, employee payroll records, and resident contact details tied to local government jobs can all sit inside the compromised environment. If your address, phone number, national identification details, or banking coordinates were shared with Cotrelec for a home renovation, utility connection, or municipal tender, those records may now be in attackers’ hands. Exposure of internal files often includes spreadsheets that link names to physical locations, making targeted follow-on fraud or harassment far easier.

Doxxing and Identity-Chain Risks

Ransomware operators rarely stop at encryption. Once internal files leave the victim’s network they become raw material for doxxing chains. A single leaked spreadsheet can connect your work email to personal phone numbers, home addresses, and even children’s school or sports-club records if those were part of a contractor file. These linkages let criminals impersonate you to utilities, file fraudulent tax returns, or escalate harassment through gaming accounts that reuse the same password. Credential leaks of this nature frequently cascade into account takeovers precisely because families reuse passwords across work, home, and children’s platforms.

LockBit 3.0 Track Record

Public reporting attributes LockBit 3.0 as the latest iteration of a ransomware program that first appeared in 2019 under the name LockBit 2.0. The group has targeted hospitals, manufacturers, logistics firms, and local governments across Europe and North America. Their playbook is consistent: initial access via phishing, remote-desktop brute force, or stolen credentials; rapid lateral movement and exfiltration; followed by dual extortion—demanding payment to decrypt systems and a second fee to prevent publication of stolen data. LockBit 3.0 introduced “bug bounty” incentives for affiliates and continued to operate through leak sites even after law-enforcement actions against earlier infrastructure. The Cotrelec listing fits this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Rotate any password you ever used at Cotrelec or related contractor portals anywhere it is reused, and switch on 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or credentials.
  • Let remediation specialists manage takedown requests for any exposed personal documents that appear on broker sites or forums.

The Cotrelec compromise is a reminder that even regional service providers hold data that can unravel personal privacy when stolen. Acting quickly on credential hygiene and identity mapping limits how far attackers can travel down the chain. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that explicitly includes children’s gaming accounts at risk from cascading credential leaks.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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cotrelec.com is one listing. Your email is probably in others.
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Report details & sourcing

Severity High
Disclosed July 18, 2023
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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